Oil rectifier



io nononidiaing in These gases are simplicity this the 'chamber to a point .this conduitiare subjected to the lllntented ll/tay ld,

nanna n.

application Enne it,

This invention relates to oil distillation apn paratns ot the type non employed upon aun tornobile engines to purity th@ oil during the operation ol the engine. The device a itorming the suhgieet ot this application' includes a number ol novel features andthe method ot distillation employed involves certain novel steps .ff-linens these is the provision tor carrying out distillation in a atmosphere., While other gases may he employed to produce the non onidiaing atmosphere, tor simplicity ll have preterred to malte use yof a portion `oi .the exhaust gases employed to heat the still.. prelerahly passed through the still so as to carry away distillates and at .the sanne time impart heat to the oil, thereby assisting in distillation. indeed, it desired, the gases directly contacting with an the oil may constitute the sole heating agent,

although ll prefer to also employ anerrhaust J'aclret tor the still., v

To-control the heatin of the still il have rovided a suitable va ve controlling the ow olE exhaust gases about the still.. For valve may be operated by link connection with the throttle so that as the throttle is opened the valve will be moved towardclosed positionA to prevent overheating of the oil when the engine is working under conditions of heavyr load or high speed. This valve is such design as :toshut oill the flow of gases over the Soil as Well as through the jacket.

yIfhave also provided nove means for in suring sufficient ilowof exhaust gases to the still to raiserthe oil to the desired temperature..

This means consstsof a device projccting into the exhaust manifold for diverting aA portion of the gases about the still, and', if desired, an aspirator operated hy the exhaust gases and draw' the gases from about also provided serving to withthe still. I have novel means for removing diluerlts from the distillation chamber. This consists of a conduit leading from the top of adjacent the air incarburetor. `The gases in aspiratingI action of the air enteringthe carburetor intake rather than to the vacuum existing in take of the usual preferably of with., aerial lin., llanta the naanitold4 applied'to the still varies in accordance with the How oi air into the carburetor.

Novel constructional details are also enr ployed in the device herein disclosed, such as the arrangement `whereby the hot exhaust gases and lubricating oil pass through. the still in opposite directions, the provision ot barriersin the distillation chamber Whereb a tortuous passage is provided rior the lubricating oil; and other teatures to he later described.,

0n. the drawings higure l is a side elevation ot an engine having my oil rectiiying device applied thereto, parts being broken array to hetter shon7 points ot construction.

Figure 2 is a longitudinal section through, the still..

'Figure 3 is a plan view ot the parts broken away..

he rei'erence character 2 indicates an internal combustion engine having a carburel tor dand an oil pump 6* located in the 'craniacase 8 and supplying oil to the hearings in the customary manner.. l0 indicates the usual exhaust manifold. My still is indicated generally by the reference character l2.. It comprises an inner or distillation charnber 14' and a surrounding jacket 16 for the passage of exhaust gases. nAr tube i8 extends up from` the jacket and establishes communication with the exhaust conduit, the projecting end of the tube being bevelled. as shown at V19 to intercept the passing gases still 'withl and divert a portion of them about the still.

bafiies 22 and 24 arranged to aii'ord `a tortuous passage for-the flow of oil through thec-hamber.

f Oil is supplied to the chamber from the pump 6 through a metering device indi-` cated at 26, ofthe type shown and c aimed in the application of Charles R. Short and passages so that the suction chamber is provided with Charles L. Lee, Serial No. 637,812, tiled May 9, 1923. The purpose of the metering device is to restrict the supply ot' oil to the still so that the oil therein may quickly reaeh the desired temperature. This metering device consists of a shaft, in this case the usual cam shaft 28, having a hole 30 drilled therethrough, which intermittently registers with passages 32 and 34, the first connected to the pump 6 by suitable tubing and the second to the still. This form of metering device possesses the advantage that since flow of oil to the still is permitted for a short period only during each revolution ot the cam shaft, oil conduits and passages of considerable size may be employed, thusavoiding clogging and yet the supply of oil to the still is kept within the desired'limits. The means for supplying the still with oil may serve as a pressure by-pass for the pump, or, be provided. rIhe oil enters the still through the fitting 36 and leaves the still through a stand pipe 38 leading to the erankcase.

The wall of the distillation chamber adjacent the conduit 18 is provided with an opening 40 to receive conical valve 42 secured to butterfly valve 44 which controls the passage of exhaust gases into the jacket. These valves may be independently mounted if desired. Butterfly valve 44 is connected to the usual throttle46 by means of suitable linkage 47 so arranged that as the throttle is opened the valves 42 and 44 are moved` toward closed position.`

The operation of the device is as follows:

A portion of the output of the lpump 6 isV forced through the metering device, previously described, into the still, the oil entering at 36, following a tortuous passage through the distillation chamber, and returning to the crankease'through the stand pipe 38. Exhaust gases flowing through the manifold 10 are intercepted by the bevelled end 19 of the conduit 18 and led to the still. A. portion of the intercepted gases enter' the distillation chamber` through the port 40, follow a zig zag course through the chamber in a direction opposite to the direction of oil flow entraining diluents with them, and are finally discharged through conduit 50 leading to a point adjacent the air intake 52 of the carburetor 4. Gases entering the jacket 16 are drawn into the exhaust manifold by means of the suction produced by the flow. of gases past the bevelled end y21 of the conduit 20. It will be noted that the oil is heated' by the gases flowing through the distillation chamberas well as those flowing throughy the jacket. The operation of the still is controlled by means of the connection 47 between the valves 4.2--44 and the throttle 46 so that the percentage of exhaust gases diverted about the still is reif desired, a separate by-pass mayl duced when the engine is operating at high speeds or under heavy loads. By this means substantially uniform heating of the still is obtained under varying operating conditions.

I claim: I

l. The combination of an internal combustion engine provided with the usual intake and exhaust and embodying a lubricating system, and the oil in the system to the direct action of hot gases from the engine exhaust to effect vaporization of diluents.

2; The combination of an internal combustion engine provided with the usual intake and exhaust and embodying a lubricating system, a distillation chamber, means for passing oil from the system through the chamber, means for exposing the oil 1n the chamber to the direct action of hot gases from the engine exhaust to effect vaporization of diluents.

3. In the combination as defined in claim l2, and means for controlling the application of the hot gases to the oil.

4. The combination of an en ine embodying a lubricating system, a disti lation chamber, means for passing oil from the system through the chamber, means for heating the oil in the chamber,and means for maintaining a non-oxidizing atmosphere in the chamier.l

5. In the combination as defined in claim 4, said last named means comprising means for introducing exhaust gases into the chamber, and means for Wit drawing the ases together with entrained diluents there rom.

6. The combination of an internal combustion engine embodying a lubricating system, a distillation chamber, means for passing oil from the system through the chamber, means for heating the oil in the chamber, means for producing a f'lov.rl of non-oxidizing gases through the chamber in contact with the oil, and common means for controlling the heating of the oil and the flow of the last named gases.

7 `.l The combination of an engine embodying a lubricating system, a distillation chamber, means for passing oil iolntlie system through the chamber, means for passing exhaust gases about .the still. to heat the oil therein, and means for introducing hot exhaust gases into the chamber, and removing them therefrom together with entrained diluents.

8. in the .combination as defined in claim 7, said engine being provided with the usual throttle valve, and means for controlling the passage of exhaust gases to the still inversely with the throttle opening.

9. An engine having a lubricating system, a distillation chamber, means for passing oil from the system through the chamber, and means for passing an evaporative fiow 0f means for exposing a portion of y lubricating oil, and common means for con trolling the flow of gases about the jacket and the communication between the jacket and the chamber.

11. In the combination as dened in claim 10, said engine being provided with the usual throttle, and said last named means varying inversely as the throttle opening.

In testimony whereof I aix my signature.

CALEB E. SUMMERS. 

